US10905333B2ActiveUtilityA1

3D intraoral scanner measuring fluorescence

89
Assignee: 3SHAPE ASPriority: Jun 27, 2012Filed: Feb 22, 2019Granted: Feb 2, 2021
Est. expiryJun 27, 2032(~6 yrs left)· nominal 20-yr term from priority
Inventors:Mike Van Der PoelKarl-Josef Hollenbeck
A61C 9/0053A61B 5/0088A61B 5/0071A61B 5/742A61B 5/0082A61B 5/0035A61B 5/0077A61B 5/7425
89
PatentIndex Score
3
Cited by
37
References
38
Claims

Abstract

A 3D scanner system for detecting and/or visualizing cariogenic regions in teeth based on fluorescence emitted from said teeth, the 3D scanner system including data processing means configured for mapping a representation of fluorescence emitted from the teeth onto the corresponding portion of a digital 3D representation of the teeth to provide a combined digital 3D representation.

Claims

exact text as granted — not AI-modified
The invention claimed is: 
     
       1. A 3D scanner system configured for displaying a digital representation of a cariogenic region of a tooth and a digital 3D representation of the tooth, the 3D scanner system comprising:
 a 3D intraoral scanner device comprising:
 i. one or more image sensor(s); 
 ii. a first light source, the first light source configured to emit light at a first wavelength, wherein the 3D intraoral scanner device is configured such that at least one of the one or more image sensor(s) detects light at the first wavelength, thereby configured to record data for a 3D surface topography of the tooth; and 
 iii. a second light source, the second light source configured to emit light at a second wavelength, wherein the 3D intraoral scanner device is configured such that at least one of the one or more image sensor(s) detects light at the second wavelength, thereby configured to record data for the cariogenic region of the tooth, 
 
 a data processor configured for:
 i. converting the data for the 3D surface topography of the tooth into the digital 3D representation of the tooth; and 
 ii. converting the data for the cariogenic region into the digital representation of the cariogenic region of the tooth, 
 
 a display configured for visualizing both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth, 
 wherein the 3D intraoral scanner is configured to shift between the first light source and the second light source repeatedly, thereby configured to illuminate the tooth successively by the light from the first light source and the second light source. 
 
     
     
       2. The 3D scanner system according to  claim 1 , wherein the digital 3D representation of the tooth is displayed by itself. 
     
     
       3. The 3D scanner system according to  claim 1 , wherein both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth are displayed at the same time. 
     
     
       4. The 3D scanner system according to  claim 1 , wherein both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth are displayed as a combined 3D representation. 
     
     
       5. The 3D scanner system according to  claim 1 , wherein the said one or more image sensor(s) is a single image single sensor. 
     
     
       6. The 3D scanner system according to  claim 1 , wherein the said one or more image sensor(s) are two image sensors. 
     
     
       7. The 3D scanner system according to  claim 1 , wherein the first wavelength is within a range of 250 nm to 500 nm. 
     
     
       8. The 3D scanner system according to  claim 1 , wherein the second wavelength is within a range of 500 nm to 850 nm. 
     
     
       9. The 3D scanner system according to  claim 1 , wherein the second wavelength is selected to excite a fluorescent material of the tooth. 
     
     
       10. The 3D scanner system according to  claim 1 , wherein the first light source is a multichromatic light source. 
     
     
       11. The 3D scanner system according to  claim 1 , wherein the first light source is a laser. 
     
     
       12. The 3D scanner system according to  claim 1 , wherein the second light source comprises an LED. 
     
     
       13. The 3D scanner system according to  claim 1 , wherein the data processor is an integrated part of the 3D intraoral scanner. 
     
     
       14. The 3D scanner system according to  claim 1 , wherein the data processor is external to the 3D intraoral scanner. 
     
     
       15. The 3D scanner system according to  claim 1 , wherein the 3D intraoral scanner further comprises a mirror configured to reflect wavelengths generated by the first light source and the second light source. 
     
     
       16. The 3D scanner system according to  claim 1 , wherein the cariogenic region is a region with caries. 
     
     
       17. The 3D scanner system according to  claim 1 , wherein the cariogenic region is a region with demineralization. 
     
     
       18. The 3D scanner system according to  claim 1 , wherein the cariogenic region is present in more or less developed stages in the cariogenic region. 
     
     
       19. The 3D scanner system according to  claim 1 , wherein the cariogenic region is a region with cariogenic bacteria. 
     
     
       20. The 3D scanner system according to  claim 1 ,
 wherein both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth are displayed at the same time, 
 wherein the said one or more image sensor(s) is a single image sensor, 
 wherein the second wavelength is within a range of 500 nm to 850 nm, 
 wherein the first light source is a laser, 
 wherein the second light source comprises an LED. 
 
     
     
       21. A 3D scanner system configured for displaying a digital representation of a cariogenic region of a tooth and a digital 3D representation of the tooth, the 3D scanner system comprising:
 a 3D intraoral scanner device comprising:
 i. one or more image sensor(s); 
 ii. a first light source, the first light source configured to emit light at a first wavelength, wherein the 3D intraoral scanner device is configured such that at least one of the one or more image sensor(s) detects light at the first wavelength, thereby configured to record data for a 3D surface topography of the tooth; and 
 iii. a second light source, the second light source configured to emit light at a second wavelength, wherein the 3D intraoral scanner device is configured such that at least one of the one or more image sensor(s) detects light at the second wavelength, thereby configured to record data for the cariogenic region of the tooth, 
 
 a data processor configured for:
 i. converting the data for the 3D surface topography of the tooth into the digital 3D representation of the tooth; and 
 ii. converting the data for the cariogenic region into the digital representation of the cariogenic region of the tooth, 
 
 a display configured for visualizing both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth, 
 wherein a first part of the data processor is integrated with the 3D intraoral scanner and a second part of the data processor is external to the 3D intraoral scanner. 
 
     
     
       22. The 3D scanner system according to  claim 21 , wherein the digital 3D representation of the tooth is displayed by itself. 
     
     
       23. The 3D scanner system according to  claim 21 , wherein both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth are displayed at the same time. 
     
     
       24. The 3D scanner system according to  claim 21 , wherein both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth are displayed as a combined 3D representation. 
     
     
       25. The 3D scanner system according to  claim 21 , wherein the said one or more image sensor(s) is a single image sensor. 
     
     
       26. The 3D scanner system according to  claim 21 , wherein the said one or more image sensor(s) are two image sensors. 
     
     
       27. The 3D scanner system according to  claim 21 , wherein the first wavelength is within a range of 250 nm to 500 nm. 
     
     
       28. The 3D scanner system according to  claim 21 , wherein the second wavelength is within a range of 500 nm to 850 nm. 
     
     
       29. The 3D scanner system according to  claim 21 , wherein the second wavelength is selected to excite a fluorescent material of the tooth. 
     
     
       30. The 3D scanner system according to  claim 21 , wherein the first light source is a multichromatic light source. 
     
     
       31. The 3D scanner system according to  claim 21 , wherein the first light source is a laser. 
     
     
       32. The 3D scanner system according to  claim 21 , wherein the second light source comprises an LED. 
     
     
       33. The 3D scanner system according to  claim 21 , wherein the 3D intraoral scanner further comprises a mirror configured to reflect wavelengths generated by the first light source and the second light source. 
     
     
       34. The 3D scanner system according to  claim 21 , wherein the cariogenic region is a region with caries. 
     
     
       35. The 3D scanner system according to  claim 21 , wherein the cariogenic region is a region with demineralization. 
     
     
       36. The 3D scanner system according to  claim 21 , wherein the cariogenic region is present in more or less developed stages in the cariogenic region. 
     
     
       37. The 3D scanner system according to  claim 21 , wherein the cariogenic region is a region with cariogenic bacteria. 
     
     
       38. The 3D scanner system according to  claim 21 ,
 wherein both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth are displayed at the same time, 
 wherein the said one or more image sensor(s) is a single image sensor, 
 wherein the second wavelength is within a range of 500 nm to 850 nm, 
 wherein the first light source is a laser, 
 wherein the second light source comprises an LED.

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